Re: [ptxdist] [PATCH] mesalib: enable legacy-wayland=bind-wayland-display for wpebackend-fdo

[Michael Olbrich <m.olbrich@pengutronix.de>]

On Thu, Jun 25, 2026 at 01:50:21PM +0200, Artur Wiebe via ptxdist wrote:
> Mesa 25.2 deprecated EGL_WL_bind_wayland_display and moved it behind the
> -Dlegacy-wayland=bind-wayland-display build option. Without it, Mesa no
> longer exposes the EGL_WL_bind_wayland_display extension at runtime.
> 
> wpebackend-fdo calls eglBindWaylandDisplayWL (obtained via eglGetProcAddress
> on EGL_WL_bind_wayland_display) to allow the Wayland compositor side to
> import wl_buffer resources as EGLImages using EGL_WAYLAND_BUFFER_WL. This
> is still the only path available for non-dmabuf, non-SHM wl_buffers in the
> wpebackend-fdo EGL compositor backend.

This is not something that should be enabled unconditionally. Please create
a kconfig option for with, without prompt and select that from
wpebackend-fdo. That way, it is clear that it is only needed for that.

Michael

> Signed-off-by: Artur Wiebe <artur@4wiebe.de>
> ---
>  rules/mesalib.make | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/rules/mesalib.make b/rules/mesalib.make
> index 7eddb97ce..040863b13 100644
> --- a/rules/mesalib.make
> +++ b/rules/mesalib.make
> @@ -263,7 +263,7 @@ MESALIB_CONF_OPT	:= \
>  	-Dintel-elk=true \
>  	-Dintel-rt=disabled \
>  	-Dintel-virtio-experimental=false \
> -	-Dlegacy-wayland=[] \
> +	-Dlegacy-wayland=bind-wayland-display \
>  	-Dlibgbm-external=false \
>  	-Dlibunwind=disabled \
>  	-Dllvm=$(call ptx/endis, PTXCONF_MESALIB_LLVM)d \
> -- 
> 2.54.0
> 
> 
> 

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